Cannot initialize SSPI package error

Question

Hi,

 

I have WCF service and one of the endpoint is having wsHTTPbinding and configured to Message And Transport credential as Windows.

 

Now on service side, I want to use Impersonation, so I am running following code in the OperationContract

 

System.Diagnostics.Debug.WriteLine(System.Security.Principal.WindowsIdentity.GetCurrent().Name);

if (ServiceSecurityContext.Current.WindowsIdentity.IsAuthenticated) //This is for a simple check only

{

using (ServiceSecurityContext.Current.WindowsIdentity.Impersonate())

{

System.Diagnostics.Debug.WriteLine(System.Security.Principal.WindowsIdentity.GetCurrent().Name);

TrustedConnect();// CALL TO MAKE TRUSTED DB CONNECTION

}

}

return ServiceSecurityContext.Current.WindowsIdentity.Name;

 

After impersonation, when I call to make a Trusted connection with SQL DB, it throws above exception "Cannot initialize SSPI package".

 

Anyone has any idea whats wrong?and why Its not working?

 

Thanks

 

 

 

Answer 1

Is there a call stack with that error message?  Have seen these kb articles?

 

http://support.microsoft.com/kb/811889

http://support.microsoft.com/default.aspx?scid=kb%3bEN-US%3bq253577

 

Thanks.